Krapi Cable Congestion?

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709 posts

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#1375954 29-Aug-2015 03:40

Sorry for the relentless barrage of posts.

Facebook has been loading exceptionally well since switching to Vodafone's DNS. All of the *-edge-chat stuff is resolved to United States IP addresses, and everything on an fbcdn-* hostname is being resolved to addresses right here in New Zealand. I really do not know why Google DNS appears to be resolving a handful of those addresses to Hong Kong, but it's consistently and reliably reproducible. Here's a screenshot showing which addresses I get from Google DNS, and from Vodafone DNS (which is what the router's now configured to use):

If you're having performance problems with Facebook or with any other sites, change your DNS. Hopefully we can poke the right people so that Google DNS (and possibly others) start properly resolving hostnames to addresses within the country...

EDIT: I've posted about this issue in Google's Public DNS forums.

EDIT2: This may shed a bit more light on things. Basically, it sounds like Google's DNS is set up to assist with regional load balancing on Facebook. It's possible that Google's DNS may attempt to give us addresses for servers that are under less load and just happen to unfortunately be on a (much) slower-performing route.

Either way, the addresses that are being resolved by Vodafone's DNS are providing much better performance overall.

johnr

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#1375966 29-Aug-2015 07:22

Any testing should be done using the ISP DNS servers and why were you using Google DNS?

Kodiack

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#1375968 29-Aug-2015 07:27

Vodafone DNS had some problems a while back and I've stuck with Google DNS since. Google DNS usually "just works" and the addresses are easy to remember when you can't be bothered looking up the ones for your ISP.

EDIT: Should also mention that I used UnoTelly for a bit last year. Also, I've since switched to these DNS servers since they appear to be recommended for customers on the cable network.

There are a lot of reasons to use third-party DNS providers, though. And if Google DNS has been causing slow Facebook performance for some, then I think it's fair for them to know about it.

EDIT2: For posterity, here's what a handful of DNS servers are resolving 6-edge-chat.facebook.com to (the host where I first realised the problem).

Both of Google's DNS servers point us to Hong Kong, while both of Vodafone's DNS servers get us to the United States instead.

freitasm

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Geekzone

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#1376010 29-Aug-2015 10:56

The Vodafone DNS you are using are not the ones for cable. You should be using these ones for cable:

--- 203.97.78.43
--- 203.97.78.44

Kodiack

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#1376012 29-Aug-2015 11:04

freitasm: The Vodafone DNS you are using are not the ones for cable. You should be using these ones for cable:

--- 203.97.78.43
--- 203.97.78.44

I edited the above post a couple of hours ago to indicate that I already switched to them. :P

freitasm

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#1376014 29-Aug-2015 11:06

Oh, I see.

Nish

155 posts

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#1376590 30-Aug-2015 20:16

1 more day before "normal" speeds....

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johnr

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#1376591 30-Aug-2015 20:18

Nish: 1 more day before "normal" speeds....

It's been mentioned many times end of ' September ' before work is 100% complete, I know of work happening every day / night this week

Sideface

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#1376595 30-Aug-2015 20:39

johnr:
Sideface: Looking good in Island Bay ...
My second good day:
Local speeds 100/10 (just like 2014 )

File download (multiple large files) from a proxy server in Iceland at 9pm tonight:

(click to view)

Right now you have people wanting to put pins in a doll of you!

The pins worked ... I'm back to 50/10Mbps, but it still works OK.

Only one more month to go ...

Sideface

Nish

155 posts

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#1376596 30-Aug-2015 20:43

johnr:
Nish: 1 more day before "normal" speeds....

It's been mentioned many times end of ' September ' before work is 100% complete, I know of work happening every day / night this week

I was referring to the Vodafone letter to cable users dated 07 July:

"You'll notice two step-changes of improvement over the next couple of months as we release the network enhancements we're currently working on. You will see improvements in your Broadband speed by August and then experience consistent and reliable fast speeds from September."

End of August is literally here and I am yet to see any improvements, its been getting worse if anything. So I will not be holding my breath for the other half of that letter either.

Scotty1986

315 posts

Ultimate Geek

#1376737 30-Aug-2015 23:47

Nish:
johnr:
Nish: 1 more day before "normal" speeds....

It's been mentioned many times end of ' September ' before work is 100% complete, I know of work happening every day / night this week

I was referring to the Vodafone letter to cable users dated 07 July:

"You'll notice two step-changes of improvement over the next couple of months as we release the network enhancements we're currently working on. You will see improvements in your Broadband speed by August and then experience consistent and reliable fast speeds from September."

End of August is literally here and I am yet to see any improvements, its been getting worse if anything. So I will not be holding my breath for the other half of that letter either.

He has a point here. Is Vodafone going to offer any form of compensation for the affected customers? I would think someone like Nish should not even have to pay for the "service" with those speeds.

quickymart

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#1376778 31-Aug-2015 05:48

So the connection should be totally free, you reckon?

Jase2985

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#1376780 31-Aug-2015 06:03

Scotty1986:
Nish:
johnr:
Nish: 1 more day before "normal" speeds....

It's been mentioned many times end of ' September ' before work is 100% complete, I know of work happening every day / night this week

I was referring to the Vodafone letter to cable users dated 07 July:

"You'll notice two step-changes of improvement over the next couple of months as we release the network enhancements we're currently working on. You will see improvements in your Broadband speed by August and then experience consistent and reliable fast speeds from September."

End of August is literally here and I am yet to see any improvements, its been getting worse if anything. So I will not be holding my breath for the other half of that letter either.

He has a point here. Is Vodafone going to offer any form of compensation for the affected customers? I would think someone like Nish should not even have to pay for the "service" with those speeds.

i posted a link a few pages back with info on that, read it and make a complaint to the commerce commission if you think the service doesn't meet the standard that Vodafone are advertising.

ramboky

491 posts

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#1376880 31-Aug-2015 09:43

Scotty1986:

He has a point here. Is Vodafone going to offer any form of compensation for the affected customers? I would think someone like Nish should not even have to pay for the "service" with those speeds.

If you call Vodafone, log a fault and ask for a discount they seem to be willing to do so. I wouldn't bother with the commerce commission unless you're wanting to make a point, by the time they've done anything the problem will be resolved.

Scotty1986

315 posts

Ultimate Geek

#1377032 31-Aug-2015 12:57

quickymart: So the connection should be totally free, you reckon?

For the months that were congested, yes. Look at those speeds, I'm no good at math, but that's less than 1% of what he pays for. Also don't start with that "it works fine outside of peak time" BS. The majority of users clearly are not home then.

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